J-Kem Temperature Controller, Gemini, Controller Only, Type J (0°C to 800°C). Gemini controls TWO independent reactions! Dual-channel controller features two temperature controllers in a single cabinet to regulate two independent reactions. The Gemini is among J-KEM’s most versatile controllers featuring high power outlets and a 100 hour digital timer (on channel 1) to turn heating OFF (or ON) at a user entered time. Includes over-temperature protection circuits with audible alarms, dual temperature displays, selectable operating modes, double fused, and 100% solid state design. Contains J-KEM’s patented power control computer which provides 0.1o C regulation of anything.0.1º C Regulation & DisplayNIST traceableAdvanced PID algorithmAlso available as 230VAC, CE approved Model GEMINI-CEType J input: 0 to 800°C